WO2019080760A1 - 一种断路器操作装置的锁定装置 - Google Patents

一种断路器操作装置的锁定装置

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Publication number
WO2019080760A1
WO2019080760A1 PCT/CN2018/110713 CN2018110713W WO2019080760A1 WO 2019080760 A1 WO2019080760 A1 WO 2019080760A1 CN 2018110713 W CN2018110713 W CN 2018110713W WO 2019080760 A1 WO2019080760 A1 WO 2019080760A1
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WO
WIPO (PCT)
Prior art keywords
button
locking
circuit breaker
shaft
boss
Prior art date
Application number
PCT/CN2018/110713
Other languages
English (en)
French (fr)
Inventor
潘万军
杨艳群
Original Assignee
上海良信电器股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 上海良信电器股份有限公司 filed Critical 上海良信电器股份有限公司
Priority to BR112020008312-7A priority Critical patent/BR112020008312A2/pt
Priority to US16/758,083 priority patent/US10991521B2/en
Priority to JP2020543674A priority patent/JP6958779B2/ja
Priority to CA3079901A priority patent/CA3079901A1/en
Priority to AU2018357310A priority patent/AU2018357310B2/en
Priority to KR1020207014128A priority patent/KR102388731B1/ko
Priority to EP18870082.7A priority patent/EP3703096B1/en
Publication of WO2019080760A1 publication Critical patent/WO2019080760A1/zh

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/58—Manual reset mechanisms which may be also used for manual release actuated by push-button, pull-knob, or slide
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/1009—Interconnected mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker
    • H01H71/0214—Housing or casing lateral walls containing guiding grooves or special mounting facilities
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/62—Manual reset mechanisms which may be also used for manual release with means for preventing resetting while abnormal condition persists, e.g. loose handle arrangement
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/20—Interlocking, locking, or latching mechanisms
    • H01H9/24—Interlocking, locking, or latching mechanisms for interlocking two or more parts of the mechanism for operating contacts

Definitions

  • the invention belongs to the technical field of circuit breakers, and in particular relates to a locking device for a circuit breaker operating device.
  • the circuit breaker is divided into a high voltage circuit breaker and a low voltage circuit breaker according to its use range.
  • Low-voltage plug-in circuit breaker also known as automatic switch, is an electrical appliance that has both manual switching and automatic voltage loss, undervoltage, overload and short-circuit protection. It can be used to distribute electric energy, start asynchronous motors infrequently, protect power lines and motors, and automatically cut off circuits when they are severely overloaded or short-circuited or under-voltage faults. Their functions are equivalent to fuse switches and A combination of thermal relays, etc., and generally no need to change parts after breaking the fault current has been widely used.
  • the circuit breakers are divided according to the installation method: plug-in, fixed and drawer type.
  • the use of plug-in circuit breakers can effectively improve the safety of the electrical equipment industry.
  • the structure of the plug-in circuit breaker has also been developed into various types.
  • the operation button is generally pressed and the circuit is broken.
  • the operation button of the circuit breaker is restored, and the circuit breaker is disconnected when the button is pressed again.
  • This traditional installation method can be combined regardless of whether the circuit breaker has been installed in the cabinet or not.
  • the circuit breaker has been connected and the circuit breaker has been closed, when the circuit breaker is inserted into the cabinet, a small arc will occur between the terminal and the bus bar of the circuit breaker, which may endanger the safety of nearby equipment.
  • the object of the present invention is to solve the problem that in the prior art, when the circuit breaker has been connected and the circuit breaker has been closed, when the circuit breaker is inserted into the cabinet, a small arc occurs between the terminal and the bus bar of the circuit breaker, which may endanger the vicinity.
  • a locking mechanism for a circuit breaker operating device is provided, and a locking member is added inside the circuit breaker. After the locking button is pressed, the operating button is pressed to close the circuit breaker, and the operating button is pulled out to open the circuit breaker to be disconnected; When the button is buckled for a while, the lock button locks the operation button, the operation button cannot be pressed, and the circuit breaker cannot be closed. There is no arc between the terminals of the circuit breaker and the busbar, which ensures the safety of the equipment.
  • a locking mechanism for a circuit breaker operating device designed by the present invention includes a housing, a button is mounted in a button slot of the housing, and a locking member is disposed in the housing, and the locking member can be opposite The button is locked or unlocked.
  • the locking member includes a locking button 1.
  • the locking button is rotatably mounted on the inner wall of the outer casing by a shaft.
  • the left end of the locking button 1 is provided with a limiting boss.
  • the button is provided with a limiting step 1 corresponding to the limiting boss.
  • the right upper end surface of the locking button 1 is provided with a locking boss 1
  • the housing is provided with the locking A corresponding one of the limiting slots of the boss is mounted on the outer casing, and one end of the torsion spring is disposed on a lower surface of the lock button located on a right side of the shaft.
  • the latch button is provided with a slot on a lower surface of the right side of the shaft, and an outer side of the latch button is provided with an inverted hook corresponding to the slot, and one end of the torsion spring is placed at The groove is pressed against the barb boss.
  • the locking member includes a locking button 2, and the locking button 2 is mounted on the inner wall of the outer casing by the shaft 2 to be rotatable about the second axis, and the right side of the locking button 2 protrudes from the limiting rod.
  • the handle is provided with a limiting step 2 corresponding to the limiting rod, the handle is mounted on the inner wall of the outer casing by the shaft 3 to be rotatable about the shaft, and the button is connected to the handle through a connecting rod a latching boss 2 is disposed on the upper left end of the latch button 2, and a limiting slot 2 corresponding to the locking boss 2 is disposed on the outer casing, and the torsion spring is mounted on the outer casing. One end of the spring 2 is placed on the lower surface of the lock button 2 on the left side of the shaft.
  • the connecting rod is a U-shaped connecting rod.
  • the invention provides a locking mechanism for a circuit breaker operating device, wherein a locking member is added inside the circuit breaker, and only after the locking button is pressed, the operation button is pressed to close the circuit breaker, and the operation button is pulled out to open the circuit breaker; When the lock button is pressed, the lock button locks the operation button, the operation button cannot be pressed, and the circuit breaker cannot be closed. There is no arc between the terminals of the circuit breaker and the busbar, which ensures the safety of the equipment.
  • Figure 1 is a schematic view showing the structure of a first embodiment of the present invention.
  • FIG. 2 is a schematic structural view of a lock button 1 in Embodiment 1 of the present invention.
  • Figure 3 is a schematic view showing the structure of the lock button in the free state in the first embodiment of the present invention.
  • FIG. 4 is a schematic structural view of a torsion spring in an installation position in Embodiment 1 of the present invention.
  • Figure 5 is a schematic view showing the structure of a circuit breaker inserted into a cabinet in Embodiment 1 of the present invention.
  • Figure 6 is a schematic view showing the structure of Embodiment 2 of the present invention.
  • Figure 7 is a schematic view showing the structure of the lock button 2 in the free state in the second embodiment of the present invention.
  • Figure 8 is a schematic view showing the structure of a circuit breaker inserted into a cabinet in Embodiment 2 of the present invention.
  • a locking mechanism for a circuit breaker operating device includes a housing 1 in which a button 2 is mounted, a locking member 3 is provided in the housing 1, and the locking member 3 is capable of facing the button 2 Lock or unlock.
  • the locking member 3 includes a locking button 301, and the locking button 301 is attached to the inner wall of the outer casing 1 via a shaft 302.
  • the upper end of the lock button 301 is provided with a limiting boss 301a, and the button 2 is provided with a limiting step 201 corresponding to the limiting boss 301a.
  • a locking boss 301b is disposed on the upper right end surface of the lock button 301, and the housing 1 is provided with a limiting slot 102 corresponding to the locking boss 301b, as shown in FIG.
  • the torsion spring 4 is mounted on the outer casing 1. One end of the torsion spring 4 is placed on the outer casing 1.
  • the lock button 301 is located on the lower surface of the right side of the shaft 302 and is provided with a slot 301c.
  • An outer surface of the buckle button 301 is provided with an inverted hook boss 301d corresponding to the groove 301c, and the other end of the torsion spring 4 is placed in the groove 301c against the barb boss 301d.
  • the lock button 301 is subjected to the action of the torsion spring 4, so that the limit boss 301a on the left side of the lock button 301 is pressed against the limit step of the button 2.
  • the lock button 301 locks the button 2, the operation button 2 cannot be pressed, and the circuit breaker cannot be closed.
  • the circuit breaker can be freely opened and closed.
  • the lock button 301 right lock boss 301b is pressed by the cabinet plate, and the lock button is 301 cis.
  • the lock button 301a on the left side of the lock button 301a no longer resists the limit step 201 in the middle of the button 2, the operation button 2 is unlocked, and the push button 2 is pushed (pulled) to drive the connection in the circuit breaker mechanism.
  • the rod action causes the circuit breaker to close (divide).
  • the locking member 3 includes a locking button 303, and the locking button 303 is mounted on the inner wall of the outer casing 1 via a shaft 304.
  • the right side of the lock button 303 is extended by the limit rod 305.
  • the handle 5 is provided with a limit step 501 corresponding to the limit rod 305.
  • the handle 5 passes through the shaft.
  • the third 6 is mounted on the inner wall of the outer casing 1 and is rotatable about the shaft 36.
  • the button 2 is connected to the handle 5 via a U-shaped link 7, and the upper left end of the lock button 303 is provided.
  • the locking boss 2 is 306, and the outer casing 1 is provided with a limiting slot hole 103 corresponding to the locking boss 2306.
  • the torsion spring 2 is mounted on the shaft 2304, and one end of the torsion spring 2 is On the outer casing 1, the other end is placed on the lower surface of the lock button 303 located on the left side of the shaft 304.
  • the lock button 2 303 on the left side of the lock button 303 is pressed by the cabinet plate to overcome the counter force of the torsion spring 2, and the lock button 303 rotates counterclockwise.
  • the right button 305 of the lock button 303 no longer resists the limit step 501 of the handle 5, and the push button 2 moves to the right.
  • the handle 5 rotates counterclockwise, the circuit breaker It can be opened and closed.

Landscapes

  • Breakers (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

一种断路器操作装置的锁定机构，包括外壳(1)，按钮(2)装在所述外壳(1)的按钮槽(101)内，其特征在于：所述外壳(1)内设有锁定件(3)，所述锁定件(3)能够对所述按钮(2)进行锁定或解锁。本断路器操作装置的锁定机构，在断路器内部增加锁定件，只有压下锁扣按钮后，操作按钮按下断路器闭合，操作按钮拉出断路器则断开；未压下锁扣按钮时，锁扣按钮锁住操作按钮，操作按钮无法按下，断路器也无法闭合。断路器的接线端与汇流排间不会产生电弧，保证了设备的安全性。

Description

一种断路器操作装置的锁定装置 技术领域
本发明属于断路器技术领域，具体讲就是涉及一种断路器操作装置的锁定装置。
背景技术
断路器按其使用范围分为高压断路器和低压断路器。低压插断路器又称自动开关，它是一种既有手动开关作用，又能自动进行失压、欠压、过载和短路保护的电器。它可用来分配电能，不频繁地启动异步电动机，对电源线路及电动机等实行保护，当它们发生严重的过载或者短路及欠压等故障时能自动切断电路，其功能相当于熔断器式开关与过欠热继电器等的组合，而且在分断故障电流后一般不需要变更零部件，已获得了广泛的应用。
断路器按安装方式分：有插入式、固定式和抽屉式，插入式断路器的使用能够有效提高电器设备使用行业的安全性，随着插入式断路器在各种电器设备上的广泛使用，为了满足各种不同电器设备的安装需要，插入式断路器的结构也发展到各式各样，目前现有传统插入式断路器产品在安装位置时的布局中，一般采用按下操作按钮，断路器闭合，操作力去除后断路器的操作按钮弹回复位，再次按下按钮时断路器断开；这种传统安装方式不管断路器是否已经安装到机柜内，按下操作按钮断路器都可以合闸；当断路器已经接好导线且断路器已经闭合后，断路器插入机柜中时，断路器的接线端与汇流排间会产生小的电弧，可能危及到附近设备的安全。
发明内容
本发明的目的就是针对现有技术中当断路器已经接好导线且断路器已经闭 合后，断路器插入机柜中时，断路器的接线端与汇流排间会产生小的电弧，可能危及到附近设备安全的技术难题。提供一种断路器操作装置的锁定机构，在断路器内部增加锁定件，只有压下锁扣按钮一后，操作按钮按下断路器闭合，操作按钮拉出断路器则断开；未压下锁扣按钮一时，锁扣按钮一锁住操作按钮，操作按钮无法按下，断路器也无法闭合。断路器的接线端与汇流排间不会产生电弧，保证了设备的安全性。
技术方案
为了实现上述技术目的，本发明设计的一种断路器操作装置的锁定机构，包括外壳，按钮装在所述外壳的按钮槽内，所述外壳内设有锁定件，所述锁定件能够对所述按钮进行锁定或解锁。
进一步，所述锁定件包括锁扣按钮一，所述锁扣按钮一通过轴一装在所述外壳的内壁上能够绕轴一转动，所述锁扣按钮一的左侧端设有限位凸台一，所述按钮上设有与限位凸台一对应的限位台阶一，所述锁扣按钮一的右侧上端面上设有锁定凸台一，所述外壳上设有与所述锁定凸台一对应的限位槽孔一，扭簧一装在外壳上，所述扭簧一的一端搭在所述锁扣按钮一位于轴一右侧的下表面上。
进一步，所述锁扣按钮一位于轴一右侧的下表面上设有槽，所述锁扣按钮一外侧面上设有与槽对应的倒勾凸台，所述扭簧一的一端搭在槽内抵住所述倒勾凸台。
进一步，所述锁定件包括锁扣按钮二，所述锁扣按钮二通过轴二装在所述外壳的内壁上能够绕轴二转动，所述锁扣按钮二的右侧伸出限位杆，手柄上设有与所述限位杆对应的限位台阶二，所述手柄通过轴三装在所述外壳的内壁上能够绕所述轴三转动，所述按钮通过连杆与所述手柄连接，所述锁扣按钮二的左侧上端设有锁定凸台二，所述外壳上设有与所述锁定凸台二对应的限位槽孔二，扭簧二装在外壳上，所述扭簧二的一端搭在所述锁扣按钮二位于轴二左侧的下表面上。
优选地，所述连杆为U形连杆。
有益效果
本发明提供的一种断路器操作装置的锁定机构，在断路器内部增加锁定件，只有压下锁扣按钮一后，操作按钮按下断路器闭合，操作按钮拉出断路器则断开；未压下锁扣按钮一时，锁扣按钮一锁住操作按钮，操作按钮无法按下，断路器也无法闭合。断路器的接线端与汇流排间不会产生电弧，保证了设备的安全性。
附图说明
附图1是本发明实施例1的结构示意图。
附图2是本发明实施例1中锁扣按钮一的结构示意图。
附图3是本发明实施例1中锁扣按钮一处于自由状态结构示意图。
附图4是本发明实施例1中扭簧一安装位置结构示意图。
附图5是本发明实施例1中断路器插入机柜的结构示意图。
附图6是本发明实施例2的结构示意图。
附图7是本发明实施例2中锁扣按钮二处于自由状态结构示意图。
附图8是本发明实施例2中断路器插入机柜的结构示意图。
具体实施方式
下面结合附图和实施例，对本发明做进一步说明。
一种断路器操作装置的锁定机构，包括外壳1，按钮2装在所述外壳1的按钮槽101内，所述外壳1内设有锁定件3，所述锁定件3能够对所述按钮2进行锁定或解锁。
实施例1
在本发明的一个具体实施例中，如附图1和2所示，所述锁定件3包括锁扣按钮一301，所述锁扣按钮一301通过轴一302装在所述外壳1的内壁上能够 绕轴一302转动，所述锁扣按钮一301的左侧端设有限位凸台一301a，所述按钮2上设有与限位凸台一301a对应的限位台阶一201，所述锁扣按钮一301的右侧上端面上设有锁定凸台一301b，所述外壳1上设有与所述锁定凸台一301b对应的限位槽孔一102，如附图4所示，扭簧一4装在外壳1上，所述扭簧一4的一端搭在外壳1上，所述锁扣按钮一301位于轴一302右侧的下表面上设有槽301c，所述锁扣按钮一301外侧面上设有与槽301c对应的倒勾凸台301d，所述扭簧一4的另一端搭在槽301c内抵住所述倒勾凸台301d。
如附图3所示，为断路器断开状态，锁扣按钮一301受到扭簧一4的作用，使得锁扣按钮一301左侧的限位凸台一301a抵住按钮2的限位台阶一201，锁扣按钮一301锁住按钮2，操作按钮2无法被按下，断路器无法合闸。
如附图5所示，为断路器可自由分合闸状态，断路器在机柜内安装到位时，锁扣按钮一301右侧锁定凸台一301b被机柜板压下，锁扣按钮一301顺时针转动，锁扣按钮一301左侧限位凸台一301a不再抵住按钮2中部的限位台阶一201，操作按钮2解锁，推(拉)动按钮2，带动断路器机构中的连杆动作使断路器合(分)闸。
实施例2
在本发明的又一个具体实施例中，如附图6所示，所述锁定件3包括锁扣按钮二303，所述锁扣按钮二303通过轴二304装在所述外壳1的内壁上能够绕轴二304转动，所述锁扣按钮二303的右侧伸出限位杆305，手柄5上设有与所述限位杆305对应的限位台阶二501，所述手柄5通过轴三6装在所述外壳1的内壁上能够绕所述轴三6转动，所述按钮2通过U形连杆7与所述手柄5连接，所述锁扣按钮二303的左侧上端设有锁定凸台二306，所述外壳1上设有与所述锁定凸台二306对应的限位槽孔二103，扭簧二8装在轴二304上，所述扭簧二8的一端搭在外壳1上，另一端搭在所述锁扣按钮二303位于轴二304左侧的下表面上。
如附图7所示，断路器未安装进机柜内时，推动按钮2向右运动，通过U形连杆7的连接作用，手柄5应做逆时针转动，但由于锁扣按钮二303左侧锁定凸台二306未被机柜板压下，锁扣按钮二303在扭簧二8作用下保持不动作，锁扣按钮二303右侧限位杆305抵住手柄5的限位台阶二501，手柄5不能转动。如附图8所示，断路器安装进机柜后，锁扣按钮二303左侧锁定凸台二306被机柜板压下，克服扭簧二8反力，锁扣按钮二303做逆时针转动，锁扣按钮二303右侧限位杆305不再抵住手柄5的限位台阶二501，推动按钮2向右运动，通过U形连杆7的连接作用，手柄5做逆时针转动，断路器可进行分合闸操作。
本实施例所附图式所绘示的结构、比例、大小、数量等，均仅用以配合说明书所揭示的内容，以供熟悉此技术的人士了解与阅读，并非用以限定本发明可实施的限定条件，故不具技术上的实质意义，任何结构的修饰、比例关系的改变或大小的调整，在不影响本发明所能产生的功效及所能达成的目的下，均应仍落在本发明所揭示的技术内容得能涵盖的范围内。同时，本说明书中所引用的如“上”、“下”、“左”、“右”、“中间”、“顺时针”、“逆时针”等的用语，亦仅为便于叙述的明了，而非用以限定本发明可实施的范围，其相对关系的改变或调整，在无实质变更技术内容下，当亦视为本发明可实施的范畴。

Claims (5)

  1. 一种断路器操作装置的锁定机构，包括外壳(1)，按钮(2)装在所述外壳(1)的按钮槽(101)内，其特征在于：所述外壳(1)内设有锁定件(3)，所述锁定件(3)能够对所述按钮(2)进行锁定或解锁。
  2. 如权利要求1所述的一种断路器操作装置的锁定机构，其特征在于：所述锁定件(3)包括锁扣按钮一(301)，所述锁扣按钮一(301)通过轴一(302)装在所述外壳(1)内，能够绕轴一(302)转动，所述锁扣按钮一(301)的一侧设有限位凸台一(301a)，所述按钮(2)上设有与限位凸台一(301a)对应的限位台阶一(201)，所述锁扣按钮一(301)的另一侧上端面上设有锁定凸台一(301b)，所述外壳(1)上设有与所述锁定凸台一(301b)对应的限位槽孔一(102)，扭簧一(4)装在外壳(1)上，所述扭簧一(4)的一端搭在所述锁扣按钮一(301)位于轴一(302)右侧的下表面上。
  3. 如权利要求2所述的一种断路器操作装置的锁定机构，其特征在于：所述锁扣按钮一(301)位于轴一(302)右侧的下表面上设有槽(301c)，所述锁扣按钮一(301)外侧面上设有与槽(301c)对应的倒勾凸台(301d)，所述扭簧一(4)的一端搭在槽(301c)内抵住所述倒勾凸台(301d)。
  4. 如权利要求1所述的一种断路器操作装置的锁定机构，其特征在于：所述锁定件(3)包括锁扣按钮二(303)，所述锁扣按钮二(303)通过轴二(304)装在所述外壳(1)内，能够绕轴二(304)转动，所述锁扣按钮二(303)的一侧伸出限位杆(305)，手柄(5)上设有与所述限位杆(305)对应的限位台阶二(501)，所述手柄(5)通过轴三(6)装在所述外壳(1)内，能够绕所述轴三(6)转动，所述按钮(2)通过连杆(7)与所述手柄(5)连接，所述锁扣按钮二(303)的另一侧上端设有锁定凸台二(306)，所述外壳(1)上设有与所述锁定凸台二(306)对应的限位槽孔二(103)，扭簧二(8)装在外壳(1)上，所述扭簧二(8)的一端搭在所述锁扣按钮二(303)位于轴二(304)左侧的下表面上。
  5. 如权利要求1所述的一种断路器操作装置的锁定机构，其特征在于： 所述连杆(7)为U形连杆。
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